If A can complete a work in 6 hours, and B can complete it in
8 hours, then how much time would they take to complete the
work together?
Answer Posted / reesdar
A's 1 hour's work=1/6
B's 1 hour's work=1/8
(A+B)'s 1 hour's work=(1/6+1/8)=7/24
Both A and B will finish the work in 24/7=3 3/7 days
| Is This Answer Correct ? | 22 Yes | 5 No |
Post New Answer View All Answers
Difference between the perimeters of two concentric circles is 66. Find the difference between radius.
Square side 7 cm. Find the area 4 equal circles of the circle lying drawn at the…
if a,b>0 and a+b=2 then the max value of ab is
In which year will the 21st century begin?
If shalu buys 6 more apples, his carton will weigh 14.5 kilograms.if the weight of one apple is 250 grams.how many apples did he initially had in his carton?
Hansie made the following amounts in seven games of cricket in India: Rs.10, Rs.15, Rs.21, Rs.12, Rs.18, and Rs.17(all figures in crores of course). Find his average earnings.
in a school for a student out of a 100 he got 74 of average for 7 subjects and he got 79 marks in 8th subject. What is the average of all the subjects?
three students appear in a test but no one write there name on answer sheet .and they submitted their sheet to teacher . when teacher distributed their answer sheet . what is probability that no one get their own answer sheet.
A&B fill 3 litres and 5 litres of oil in the car. C pays Rs. 8/- to A7B. How much will A get?
Complete the series 1 6 3 7 5 8 7 ?
Technical questions
A and b can do a piece of work in 15 and 10 days. A and b work on it for sometime and then a leaves b completes the job in 5 days. For how long did a work.
Can you find out what day of the week was January 12, 1979?
The Parallelogram PQRS, the line RS have midpoint T from line PQ. What is the ratio of Triangle PTS / parallelogram PQRS?
A man has Rs 2. He wins or loses Re 1 at a time. If he wins he gets Re 1 and if he loses the game he loses Re 1. He can loose only 5 times. He is out of the game if he earns Rs 5.Find the number of ways in which this is possible?